Combined furnace and gas-generator therefor.



J. A. CHARTER.

Eatented Feb. 16, 1915.

4L. SHEETS-SHEET 1.

COMBINED FURNAGE AND GAS GENERATOR THEREEOR.

AEPLIGATION PILEDNOV.11,191Z

J. A. CHARTER.

COMBINED FURNACE AND GAS GENERATOR THBREFOR.

APPLICATION FILED Nov.11,1912.

l y l Q, Patented Feb. 15, i915.

J. A. CHARTER.

COMBINED FURNAGE AND GAS GENERATOR THEREPOR.

APPLICATION FILED NOV. 11l 1912:

Patented Feb. 16, 1915.

4 SHEETS-SHEET 3.

J. A. CHARTER.

COMBINED FURNAGE AND GAS GENERATOR THEREFOR.

IILED NOV. 11

APPLICATION Patented Feb. 16, 1915.

4 SHEETS-SHEET 4.

' Chicago, in the county of 'Cook and State: ,5

JAMES A. CHARTER, OF CHICAGO, ILLINOIS.

COMBINED rUnNAcE AND eas-GENERATOR THEREFOR. n l

Specication of Letters Patent.

Patented Feb. 16, 1915.

Application led Novengaer 11, 1912. Serial No. 730,784.

To all 'whom it may concern.'

Be it knownthat I, JAMES A.' CHAnTER, a.. citizen of the United States, residing at o f Illinois, have invented -a certain new and -useful `Combined Furnace and Gas-Gener ator Therefor, of which the following is a specification. Y

Crude oil has until very recently been the most economical fuel for `creating unin-4 The object of this invention is to provide a. device `for fueling such devices, in which coal, peatand other similar fuels in more or less pure form are used, and which inthe process of burning ythe coal is converted into gas, which with the resulting coke is consumed in the furnace, oven, or other heat generators to which the device of this inventionis applied.

This invention consists -in a mechanism capable of carrying out the foregoing objects whichcan be very easily and cheaply made and'installled, which is satisfactory. in operation and not readily liable to get out of order. l

More in detail the invention consists i, broadly in a device yby which coal is. heated by the furnace in which it is to be burned and converted into gas which -is later conveyed into the furnace together with the coke and other waste products of the coal,

created in the production' -ofithe gas vand there burned.

Other features and details ofthe invention will be fully explained later in the specilication.

In the drawings Figure 1 is a sectional ,elevation of a furnace having one form of identical with Fig; 1, showing a motor, preferably steam operated, takingzthe place of the belt mechanism ofFig. 1. Fig. 3 is a plan and F ig. 4 a front .view of a modified form of the device in .which the coal isconveyed acrossy the"`cor'ners of the'f''furnacei;

Fig. 5 is a front view of a modified form of construction in whichchains are used for .feeding the coal through the furnace.

In -all of the figures the similar numerals *indicatedy `denote similar parts throughout the several views.-

. In all of the iguresa conventional form 4of furnace, oven, or the like 10 isshown in which the fuelis ultimately to be burned. In the operation of all of the devices a fire is started in the furnace chamber or fire box 12 by the use ofkindling or other. suitable materi'al and maintained a suhcient length tense heat in furnaces, ovens and the like-Af time to heat up the device and start theproduction ofgas in the manner hereafter described, after which this initial fire may be allowed to `die outl and` the device operates automatically thereafter so long as coal is supplied to the hopper 14. This coalhop.- l per is in each, instance, located at one side of the furnace near its top, and is provided with a-suitable opening 16 through which coal or pther' material to be operated upon maybed introduced. This opening is closable by means of a lid 18 securable in tight position bythe use of a. screw or clamp device 20 of ordinary construction.

In the construction shown` 1n or more pipes 22 enter the lower portion of the coal hopper ,14 and thence extendientirely through both walls and the re chamber' of the furnace, so that fire within the furnace comes-in contact with the central portions of these pipes. The opposite ends of the pipes 22 terminate in a receptacle 24 having a hollow chamber 34 therein closed at its top with a valveor cap 24 and having itslower ends ope'ning into in injector 26 whose nozzle 28 enters the e chamber 12 of' the furnace, preferably below-the pipes 22. rIhis injector 26 is fitted with a steam or air nozzle 30 'controlled by a valve 32in the ordinary manner. The construction is, like all devices ofthis kind, such that when gas is delivered by the tubes 22 into the interior chamber 34 of the receptacle 24 and steam or airis admitted through the nozzle 30, the gas or fuel within the space 34 will i be driven through the nozzle 28 into the furnace. The furnace having been previously heated by fire manually placed within the ft1 rnace as heretofore described, the gasor fuel fthus driven into the furnace chamber 12 takgi-piire and thereafter .continues to heat the portions of the tubes 22 lwithin the Fig; y1, ond

--being-that allthe screws 361are .operated to furnaceas well. as the walls of the `furnace. 'in contact with the heated interior of the 65V Inside of each tube or pipe 22 heretofore described is a feed screw 36 having one end entering` coal hopper `l14"andfgftlie other` end carrying a "gear or sprocket :wheel 38, or other equivalent mechanism, Th1s screw serves the double functionfofpositively feeding; the solid fuel from chamber 14 through the pipe v22"and"at''thefsarev time nace they take fire and thus provide new "-heat' for the furnace, the pipesi 22 and' the causingit to Vtravel suiiciently slowly so thatn its passage'th'lnn'iglxk the pipe 2 2 sub# stantially all of the gas contained inthek solid fuel is driven off before the solid fuel -has entirely 'completed its; 'passa ge lthrough the vfpipe 22 andbeen delivered into the; re-

" .1 ceptacle 24. In other wordssthe. 4fuelcannot travel' fasterthan it should through the ,pipe -22fas would' be possible-witham air yblast used'in theabsence of thepscrew. The

vmechanism justdescribed'on the end offeach screw *362 is`- geared of lto the.I zcorresponding mechanismsl `of.l` the other screws and the ..whole is--driven byfany, suitable means-such :for instanceas a belton aj pulley 41, leadingk .to any` suitable 4source of power, the result .'force fuel? through their respectlve' pipes. 'In order to provide steam forlmixture with coal in thevhop'per l:14 orin the tubes 22 if' and valves` 52f and-54 to a distributing pipe 56y enteringithe fuel `pipes Y22 heretofore 'described `l.Throughvthe` use' of this mechanism --water may be --adrnittedi to pipe or chamber'40,'converted into steam-and passed into pipes 22' as the operator finds iit necesfsary... In` some', convenient portion of the `coal hopper 14,l a pipe.60,2connected by ranye suitable plpln'g, not-here'shown, to the piping of box 40 or any'other suitable source :through which steam" may be, 4if desired,

'pulley 41 thereby rotating screw 36.: Simultaneously the injectonmechanism 26-32 is started. As the mechanis'm'thus started op'- erates, gravity feeds the coal inthe-hopper down 'to the entrance-of. the. pipes 22 v.and Aintocontact with the left handr ends of the screws36. Theselscrews take hold of the coal yand slowlyv convey it through pipes 22. Asthe .coal travels. along these pipes, Iit comes pipeor box 40. When once started in this manner the furnace operates continuously under its own gas as long as thehopperis supplied with coal. Whenever necessary to .insure'perfect gasgln'akingy steam may bead- .mitted into -the pipes 22 and into the hopper -14 inthe manner described. Obviouslytlie 'steam may be provided from any independent steam boiler wholly apart fromthe furnace 'without' departing from the spirit I ofjthie invention.

The device in of Fig. 1 except that a steam motor or en gine 64 is substituted for ythe pulley 41 for driving the, screw,` 36 within pipes 22 and whatever steam is necessary within the pes Fig-2de the samea's that obtained from theexhaust steam o this motor or engine 64, conveyed through a pipe 66 which preferably has a portionv 68 entering the :furnace chamber y12, thence `enterir-ng the pipes 22 at their left hand end as shown.

'In Figs. 3 and 4 is 'shown a convenient.

modification of the devices ofthe-two previous figures in `which Apipes 72 corresponding 'to pipes,2 2 run diagonally throu hl the furnace,`the screw 74- therein being 'riyen -b'y bevelfgearing 7 6, yor its equivalent oper- Iated by pulley 78 which may be, as inthe case, illustrated in Fig.- L operated. by a belt,I oras inl thecase yillustrated in Fig.` '2, .byj a steam' engine.

through tube ,22 andover ordinary ysprockets powery not shown is .substituted for the conveyer screw 36 heretofore described. i

The vclaims are;y

nace, a lsolid fuel chamber, a pipe leading -fromsaid fuelchamber through ythefurnac'o, -a screw device within the pipe forlfeedn and controllingV the :passage .of solid fue from thereceptacle through the-pipe ata -`lowlvelocity and an injector deviceatthe exit end of the pipe for forcing the resultin productsof the fuel, both gaseous andilsoli theffurnace.;- s. 1

2.I-1ia device of the class -described, a .furnace, a solidwfuelachamber, a pipe 4leading .from said f uelchamber. through the furnace,

. a device within "the pipe, lfor feeding fand controlling thepassi'n'g, of ,solid fuel :from

meme@ c Q the receptacle through the pipe at a ow ve scribed my name in the presence of two Witlocity and an injector device at the exit end nesses.

of the pipe for forcln the resulting products of the fuel botl gaseous and solid JAMES A" CHARTER' i through an opening common to both into the .Witnessesz furnace. DWIGHT B. CHEEVER,

In witness whereof, l have hereunto sub- SITE `/Vllq'rlemcnslzN.

' .copies of @his paient may be obtained for. five cenzs each, by addressing `the Commissioner of Patents,

Washington, D. C. 

